Means for and method of compensating oscillating masses



K. MERZ Aug. 25, 1931.

MEANS FOR AND METHOD OF COMPENSATING OSCILLA'IYING MASSES Filed June 18,1928 In vmor:

ll: ##opne I 4 Patented Aug. 25, 1931 UNITED STATES KARL MEBZ, OFTIENGEN, GERMANY MEANS FOR AND METHOD OF COMPENSATING OSCILLATING MASSESApplication filed June 18, 1928, Serial No.'286,434, and in Germany July22, 1927.

My invention relates to mechanical devices and arrangements intended forpreventing the occurrence of free forcesinmechanical movements adaptedtocause shocks in the supporting structure. It has special reference tooscillating masses such a swinging means for transportation like rockingor shaking troughs, which are likely to create free forces notcompensated for, which forces are'trans .10 mitted to the supportingstructure or building, wherein they cause shocks and trembling movementsof rhythmical character adapted to lead to early destruction of thestructure or building.

My invention does away with these drawbacks by special arrangementof'the oscillate ing masses in relation to each other, to the supportingstructure, and to the mechanical movement driven by some machine.According to .m invention the mechanical movement, wit or without thedriving machine is so supportedthat it may slide horizontally on thesupporting structure orit is hun to it adapted to swing like a pendulum.Ihe same arrangement is provided with regard to the osc' lating masses,they are also'hung tromthe structure or otherwise so supported that theymay slide horizontally.

The best efiect aimed at can be had by arranging the members in thefollowing manvner, in accordance with my invention: One of theoscillating masses is supported by or from the structure in thedescribed way; the second mass is not directly supported by or from thestructure but by or from the first mass,.but in the same resilientmanner as described above; the mechanical movement,

which for example may be a crank and lever driving, is inserted betweenthe two masses.

Thus the shocks'on the supporting structure resulting from the movingmasses especially 1 when they change their direction of movement arereduced to a minimum or are even totally avoided.

If it should be considered necessary to alter the. absolute movingdistances of the indi-' vidual masses this may be effected by ade-.quate alteration of themasses themselves for but'then their ends haveto be in rigid conexample by increasing or reducing their weights. I

The operating engine, accordin to my invention, may form part of one othe oscillating masses, which may easily be provided 5 when using anelectro motor for example. But of course any other kind of engine may aswell be made use of as a source of power and the mechanical movementbetween the two swinging masses may be driven by an elastic belt or thelike.

Having 1given a general description of my invention now want to point itout more in detail referring to the drawings which rep-' resentdiagrammatic. examples embodying my invention. a

The figures are side views on the difi'erent systems. p a

In Fig. 1 mass 1 is suspended from the supporting structure S by meansof rods 2. 9 Mass 3.is resting on mass 1 by means of stifl rods 4 (a, b,c, and d) There is a crank and lever arrangement '5 inserted betweenmasses 1 and 3. Electro motor 9 by means of belt 8 and fly wheel 6drives crank 5. An additional weight 7 may be added to mass 1 forexample for the purpose of adjusting the swinging distances of themasses. 1

Instead of hanging the masses to the fixed structure S they may as wellbe supported by it from below, like this is re resented in Fig. 2. Herewheels 10 are provlded for the urpose of allowing for the necessarysliding horizontal movement.

Rods 4 are assumed to be stifi' in the examples shown in the drawingsand .accord-. ingly they are 'journaled at both ends. They may as wellbe elastic rods like leaf springs,

nection with the masses. I do not want to be limited to the detailsdescribed or shown in the drawings as many variations will occur tothose skilled inv the ar Y What-I claim is: 1. A device of the typedescribed comprismg a fixed supporting structure; a system of massessupported by said structure but freeto oscillate horizontally as awhole; said sys-' tem comprising two masses, one supported mo by theother but free to oscillate horizontally with relation to each other,and a mechanical movement inserted between said two masses I adapted tocause said masses to oscillate in relation to each other, and a primemover adapted to drive said mechanical movement,

said prime mover forming part of one of said oscillating masses.

2. A device of the type described comprisin a fixed structure; a massadapted to osci ate horizontally in relation to said structure and beingsuspended thereto; a second mass adapted to oscillate horizontally inrelation to said first mass and being supported by said first mass; acrank and lever arrangement inserted between said two masses;

and a motor for operating said arrangement;

said motor forming part of one of said masses.

3. A device of the type described comprising a mass mounted toreciprocate and a second mass mounted on the first mass to reciprocatein the same direction as the first mass, reciprocating -mechanismmounted on said first mass and connected to said second mass and a motormounted also on said first mass to drive said reciprocating mechanism.

KARL MERZ.

